THE EFFECTS OF STRENGTH CONDITIONING ON OLDER WOMENS ABILITY TO PERFORM DAILY TASKS
THE EFFECTS OF STRENGTH CONDITIONING ON OLDER WOMENS ABILITY TO PERFORM DAILY TASKS
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DOI：
10.1111/j.1532-5415.1995.tb07045.x
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发表时间：
1995-07-01
影响因子：
6.3
通讯作者：
NICHOLSON, C
中科院分区：
文献类型：
--
作者：
HUNTER, GR;TREUTH, MS;NICHOLSON, C
目的：本研究的目的是确定力量训练计划对步行速度和相对肌肉应力的影响，通过标准化综合肌电图（nIEMG）活动测量，同时携带一盒杂货和从椅子上站起来。设计：前瞻性干预研究。设置：来自亚拉巴马伯明翰社区的志愿者受试者。参与者：14名年龄在60至77岁的健康女性。干预：16周的全身力量调节。测量：在16周的力量调节之前和之后，对所有受试者评估以下变量：（1）力量，六个等张测试和两个等长测试;（2）步行速度;（3）当搬运一盒杂货时二头肌的nIEMG;和（4）当从椅子上站立时股直肌的nIEMG。主要结果：在力量训练计划之后，受试者的等张强度显著增加，等张测试平均增加52%，等长测试平均增加31%。步行速度也显著增加（18%）。搬运一箱食品时，肱二头肌的nIEMG下降了36%。股直肌nIEMG下降40%，而站着和47%，而sizing.Conclusions：力量调理后，健康的老年妇女不仅表现出大幅增加的力量，但也改善步行速度和能力，如从椅子上站起来，进行日常工作，携带一盒杂货。
OBJECTIVES: The objectives of this study were to determine the effects of a strength-training program on walking speed and relative muscular stress, as measured by normalized integrated electromyographic (nIEMG) activity, while carrying a box of groceries and standing from a chair.DESIGN: Prospective intervention study.SETTING: Volunteer subjects from the community of Birmingham, Alabama.PARTICIPANTS: Fourteen healthy women aged 60 to 77 years.INTERVENTION: Sixteen weeks of total body strength conditioning.MEASUREMENTS: Before and after 16 weeks of strength conditioning, the following variables were evaluated for all subjects: (1) strength, six isotonic tests and two isometric tests; (2) walking velocity; (3) nIEMG of the biceps while carrying a box of groceries; and (4) nIEMG of the rectus femoris while standing from a chair.MAIN RESULTS: After the strength training program, subjects' isotonic strength increased significantly, an average of 52% on the isotonic tests and 31% on the isometric tests. Walking velocity also increased significantly (18%). nIEMG of the biceps decreased 36% while carrying a box of groceries. Rectus femoris nIEMG decreased 40% while standing and 47% while sitting.CONCLUSIONS: After strength conditioning, healthy older women showed not only substantially increased strength but also improvements in walking velocity and the ability to carry out daily tasks such as rising from a chair and carrying a box of groceries.